Staff Publications

Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
  • About

    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 417424
Title No evidence for general condition-dependence of structural plumage colour in blue tits: an experiment
Author(s) Peters, A.; Kurvers, R.H.J.M.; Roberts, M.L.; Delhey, K.
Source Journal of Evolutionary Biology 24 (2011)5. - ISSN 1010-061X - p. 976 - 987.
DOI https://doi.org/10.1111/j.1420-9101.2011.02229.x
Department(s) Resource Ecology
PE&RC
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) white-crowned sparrows - melanin-based coloration - bluebirds sialia-sialis - male uv attractiveness - parus-caeruleus - sexual selection - cyanistes-caeruleus - feather growth - satin bowerbirds - postnuptial molt
Abstract Condition-dependence is a central but contentious tenet of evolutionary theories on the maintenance of ornamental traits, and this is particularly true for structural plumage colour. By providing diets of different nutritional quality to moulting male and female blue tits, we experimentally manipulated general condition within the natural range, avoiding deprivation or stressful treatments. We measured reflectance of the structural-coloured UV/blue crown, a sexually selected trait in males, and the white cheek, a nonpigmented structural colour, directly after moult and again during the following spring mating season. We employed a variety of colour indices, based on spectral shape and avian visual models but, despite significant variation in condition and coloration, found no evidence for condition-dependence of UV/blue or white plumage colour during either season. These and previously published results suggest that structural colour might be sensitive to stress, rather than reduced body condition, during moult.
Comments
There are no comments yet. You can post the first one!
Post a comment
 
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.